# Best Lead Generation Companies in San Diego, CA

## How Many Lead Generation Companies Products Does G2 Track?

**Total Products under this Category:** 844

### Category Stats (Aug 2026)

- **Average Rating:** 4.66/5 The average rating of products in this category, based on all submitted ratings
- **Top Trending Product:** Leadium (+2.25%) - Among all products in this category, Leadium recorded the largest rating increase compared to last month

_Last updated: August 06, 2026_

## How Does G2 Rank Lead Generation Companies Products?

**Why You Can Trust G2's Software Rankings:**

- 30 Analysts and Data Experts
- 5,200+ Authentic Reviews
- 844+ Products
- Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

## G2 Grid® for Lead Generation Companies
 ![G2 Grid® for Lead Generation Companies plotting products by satisfaction and market presence](https://www.g2.com/categories/lead-generation-services/grids.png?focus%5B%5D=126369&focus%5B%5D=81617&focus%5B%5D=31752&focus%5B%5D=87352&focus%5B%5D=23458&focus%5B%5D=33439&focus%5B%5D=1173866&focus%5B%5D=152681)

Highlighted products: memoryBlue, KlientBoost, INFUSE, Martal Group, SmartBug Media, demandDrive, Pipeful, and The Sales Factory.

Underlying data: [Grid® JSON](https://www.g2.com/categories/lead-generation-services/grids.json?focus%5B%5D=memoryblue&focus%5B%5D=klientboost&focus%5B%5D=infusemedia-infuse&focus%5B%5D=martal-group&focus%5B%5D=smartbug&focus%5B%5D=demanddrive&focus%5B%5D=pipeful&focus%5B%5D=the-sales-factory)

**Sponsored**

### Google Cloud Firestore

Cloud Firestore is a NoSQL document database that lets you easily store, sync, and query data for your mobile and web apps—at global scale.

[Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=ppc&secure%5Bad_slot%5D=category_product_list_llm&secure%5Bcategory_id%5D=1377&secure%5Bchosen_at%5D=2026-08-15T16%3A29%3A35Z&secure%5Bdisplayable_resource_id%5D=318&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=retargeted_product&secure%5Bplacement_resource_ids%5D%5B%5D=67028&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=67028&secure%5Bresource_id%5D=1377&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Flead-generation-services%2Flocations%2Fsan-diego-ca-us&secure%5Btoken%5D=47c3083617ef0ebe03122fa308d05ebf8da3cc41c73e06bedf6395c5fe3ea2d3&secure%5Burl%5D=https%3A%2F%2Fcloud.google.com%2Fbuild%3Futm_source%3DG2%26utm_medium%3Ddisplay%26utm_campaign%3DCloud-SS-DR-GCP-1713658-GCP-DR-NA-US-en-G2-Display-Banner-All-%2525epid%21-%2525ecid%21-build%26utm_content%3D%257Bdevice%257D-%257Badgroupid%257D-%257Bnetwork%257D-%257Btargetid%257D-%257Bloc_physical_ms%257D-%257Bcampaignid%257D&secure%5Burl_type%5D=custom_url)

### [BOL Agency](https://www.g2.com/products/bol-agency/reviews)

BOL is a B2B marketing agency with more than 20 years of experience growing start-ups and Fortune 500 companies. Using performance marketing and breakthrough creative, BOL goes beyond what’s expected to deliver wow-worthy results. With an ABM mindset and a laser focus on driving growth, BOL aligns teams, goals and strategies to rapidly improve performance.

#### Who Is the Company Behind BOL Agency?

- **Seller:** [BOL Agency](https://www.g2.com/sellers/bol-agency)
- **Year Founded:** 1997
- **HQ Location:** San Diego, California, United States
- **Twitter:** @bol\_agency  
1,504 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=22fa81344e44346ec6353614cfe37342628ac0e9b1bcd6bb13989e7249d486e6&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fbolagency&secure%5Burl_type%5D=linkedin_company_website)  
59 employees on LinkedIn®

#### Who Uses This Product?

- **Top Industries:** Information Technology and Services
- **Company Size:** 100% Small

#### What Are G2 Users Discussing About BOL Agency?

- [What is BusinessOnline used for?](https://www.g2.com/discussions/what-is-businessonline-used-for)

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[Browse Lead Generation Services Themes](/categories/lead-generation-services/themes)

 ![Alanna Iwuh](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Alanna Iwuh")
A

Researched and written by [Alanna Iwuh](https://research.g2.com/insights/author/alanna-iwuh)

Updated October 3, 2024

Lead generation services providers manage campaigns to discover and qualify customers for businesses, also known as leads. These services can be highly beneficial in filling an organization’s sales pipeline with potential clients; providers can also assist with establishing initial communications and building interest in the brand (demand generation). A number of these providers will assist with follow-up campaigns and other "lead nurturing" to ensure the best possible conversion rate. B2B lead generation services, or lead gen services, are typically used by sales departments but have proven to be beneficial for marketing teams when planning targeted outreach or generating new advertising efforts. Working with B2B lead generation companies can eliminate the guesswork of sales cold calls and present brands with high-quality leads (HQL) based on the brand’s ideal customer profile. This can streamline sales and marketing strategy, making sales quotas more easily attainable and setting the company up for success.

B2B lead generation services work as a supplement to or a replacement for in-house efforts using [lead generation software](https://www.g2.com/categories/lead-generation) such as [lead capture software](https://www.g2.com/categories/lead-capture). Leads that are collected through an outsourced services provider can be further validated using [lead intelligence software](https://www.g2.com/categories/lead-intelligence) and [lead scoring software](https://www.g2.com/categories/lead-scoring). Lead lists that are assembled and delivered using these services can be uploaded into your organization’s [CRM software](https://www.g2.com/categories/crm) to be organized, accessed, and updated throughout the sales lifecycle. Partnering with B2B lead generation services in conjunction with other outsourced services such as [inbound marketing services](https://www.g2.com/categories/inbound-marketing) and [email marketing services](https://www.g2.com/categories/email-marketing-services) can provide businesses with a robust source to gather and nurture leads.

To qualify for inclusion in the Lead Generation Services category, a provider must:

- Perform customer profile creation interviews to better understand a company and determine its ideal target customers
- Discover and source leads using one or more tactics, such as online research and content marketing
- Qualify leads to ensure the information is correct and they are legitimate sales opportunities
- Deliver complete lists of quality, verified leads

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